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Robert
Robert, RV Mechanic
Category: RV
Satisfied Customers: 12155
Experience:  18 yrs. RV experience including Cummins North West, Country Coach, Monaco Coach - vendor certified.
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We have a Winnebago Sightseer 35G with a Ford chassis purchased

Customer Question

We have a Winnebago Sightseer 35G with a Ford chassis purchased in 2013. It spends most of its time at an RV resort plugged in. A few months ago, all 3 batteries (one for the engine and two for the coach) died and would no longer hold a charge. We had them replaced. In the past, when we were away from the campground (usually for 2 weeks or more), we would use both battery disconnects and turn the circuit breaker on the pedestal off. Since that method resulted in a short life for the original batteries, we tried another approach on the advice of a fellow camper. We left the circuit breaker on the pedestal on, did not use either battery disconnect and left the fridge and air conditioner on. Upon returning to the camper a few weeks after the new batteries were installed, all 3 are again dead and unable to hold a charge. What are we doing wrong?
Submitted: 1 year ago.
Category: RV
Expert:  Robert replied 1 year ago.
Hi my name is Robert...
Sounds to me like you are not doing anything wrong, when you are not using the RV the disconnects should be turned OFF. So you could have a draw on the system, this would most likely be caused by something hooked up directly to the battery and bypasses the solenoid. Also if you have the inverter option make sure the inverter is OFF or it will drain the batteries pretty fast.
What you could do is install manual disconnects right at the batteries, most RV stores have them. The other option is to find the draw which can be time consuming but a RV shop that has an amp clamp can see the draw and then troubleshoot the systems..... Hope this helps some.... Robert